Trains from London St Pancras International to Heathrow Airport

Heading to the airport and need more information on how to travel from London St Pancras International to Heathrow Airport by train? Start your journey with us!  

Usually, the train journey from London St Pancras International to Heathrow Airport takes around 1 hour and 17 minutes, although the fastest services can take as little as 1 hour and 13 minutes. As there are no direct trains available on this route, you will need to make at least one change during your journey.  

If you’re traveling on this route, you’ll need to head to Kings Cross St Pancras underground station and take the tube to Paddington station. From here, you can jump on the Heathrow Express to the airport. On board you’ll find amenities such as comfortable seating, luggage racks, toilets and bike storage. If you prefer to travel in style, upgrade to Heathrow Express First Class and you’ll enjoy extra legroom, a personal table, power sockets and 4G-enabled WiFi. Before you know it, you will arrive at Heathrow Airport station.  

Servicing around 75 million passengers each year, Heathrow Airport is the UK’s busiest airport. Boasting four terminals, there’s plenty to keep you entertained before boarding your flight, including shops, cafes, restaurants and bars.  

Want to book cheap train tickets? Try to travel at Off-Peak times, as tickets tend to be cheaper outside of morning/evening rush hours on weekdays. Also, try to book an Advance ticket – they are normally released 12 weeks before the departure date and are usually a lot cheaper than purchasing tickets on the day of travel.  

Ready to book? Start a search for cheap train tickets from London St Pancras International to Heathrow Airport now. There’s no need to wait, just head to our Journey Planner at the top of the page! If you’d like to read more information about the train journey, keep reading for FAQs, timetables with first and last train times, as well as tips on booking cheap tickets.